Subject: bug#7728: 24.0.50; GDB backtrace from abort

From: Eli Zaretskii <[email-masked]>
Date: Sat, 25 Dec 2010 13:12:26 +0200

> From: Andreas Schwab <[email-masked]>
> Cc: Drew Adams <[email-masked]>,  [email-masked]
> Date: Sat, 25 Dec 2010 11:44:21 +0100
> 
> Eli Zaretskii <[email-masked]> writes:
> 
> > So it looks like somehow we get into selected_window a value that is
> > not a window.  I'm guessing it was nil in this case.
> 
> There is exactly one place where selected_window can be nil:
> 
> /* Note that selected_window can be nil when this is called from
>    Fset_window_configuration.  */

And Fset_window_configuration->Fselect_window call is indeed on the
call stack.